Why do a Percolation Test?
A soil percolation test is required to be carried out on the land where the septic tank system or sewage treatment plant soakaway is intended to be built. It is a test that determines the rate in which soil absorbs a known volume of water. This is to make sure that the land (soil) is suitable for a soakaway, and to make sure that the soakaway is designed properly.
- Excavate a hole 1m square and 1m deep
- Dig the test hole vertically to the proper depth. Remove all loose debris
- Line with Visqueen®
- Fill the test hole with water
- Accurately time noting depth at 5, 10 and 30 second increments
- Carry out the test at least 3 times, with at least 2 trial holes
- The average figure from the tests is taken
- Report produced
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